Reduced CD reissue of Hopkins' remarkable book that opened a wonderful window on the world of new and unusual instruments (brief account, pictures, motives, potted histories) most of which are extraordinary - what people do is stranger than you can imagine). Mostly new to non-subscribers to Bart's magazine, but includes Leon Theremin, Harry Partch, Hans Reichel and Robert Moog and a 73 minute CD of original performances by 18 of the 37 designers on their instruments.L